gnu/packages/patches/rpm-CVE-2014-8118.patch

   1 Fix CVE-2014-8118 (integer overflow allowing arbitrary remote code
   2 execution via crafted CPIO header).
   3
   4 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8118
   5
   6 Source:
   7 https://bugzilla.redhat.com/attachment.cgi?id=962159&action=diff
   8
   9 Adopted by Debian:
  10 http://anonscm.debian.org/cgit/collab-maint/rpm.git/plain/debian/patches/CVE-2014-8118.patch
  11
  12 diff --git a/lib/cpio.c b/lib/cpio.c
  13 index 253ff0f..600633a 100644
  14 --- a/lib/cpio.c
  15 +++ b/lib/cpio.c
  16 @@ -399,6 +399,9 @@ int rpmcpioHeaderRead(rpmcpio_t cpio, char ** path, int * fx)
  17
  18      GET_NUM_FIELD(hdr.filesize, fsize);
  19      GET_NUM_FIELD(hdr.namesize, nameSize);
  20 +    if (nameSize <= 0 || nameSize > 4096) {
  21 +        return RPMERR_BAD_HEADER;
  22 +    }
  23
  24      char name[nameSize + 1];
  25      read = Fread(name, nameSize, 1, cpio->fd);